1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8535008504b20f80da48407f3bbd0489362bb935a064f44a20e77c9a823dd54. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/feec325a-5dca-478a-9885-5dcdd27131e4.json and https://artists.proofprofile.net/proofs/artist/feec325a-5dca-478a-9885-5dcdd27131e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc50816b037ea2dddc7d0beac421086b9f8024ffad6e94768aebc6f4d608c374. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068981cc98acd24c56202465a690406da95ae360196067bf5dbbb3305ec846fd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55cb7010e1221fc8917b7ce2e073033f8c9e46fc0e4716c68892be956f140b5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62228514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0f89d02e6884a167c89aeda8a8f6b1c34f0f9fa860c076cefab33015c5e05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42218968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2a453fa8b57d1eb839f136c95b80a9c04f977198dbbd5a709a2a2b7311b441. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72194080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09224cccefbefa2940baf967fdcc7bd43e6a65b51416c2cc35d9c52f06ba3c12. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2286747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d51cefd0c54161392aac59addaa341f7cd59b6afb8545a704f8f672e401ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72146587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54802ba3e571baa91f72bc78ede37221d1cc622fd215b33c2921f9184bbdbb22. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62101472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c1f01c7fea264b7c909ccb2c85fa5fb6f152f982cd3e38a3551819dd3c93a0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2154607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe4630799ee87b205567acc448d8e197b480d9eeb602fa116e1c4abbd932c76. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2232639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0838279b99fcde2e9b36bf88aba1727a917d0d0a784d08bed7ea9e3a88c031. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2282613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5a0ef5a5b3d4b8d0238d7868e60c2d1a460c790c753dfc4f5bab8f59e497b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4266a77037573fa86855f48a36db3c55dcdaa704826a1ae587e7b3834924f087. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddf2133c0f81191b0a4a19a5d583e202d35d59fd05974fd7eef50aa04f98a17. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997429421baa37b470f22a228fa2d68d5e683c62b3c989101fb1b1e788bd465e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050f1f0dafd0332ed89d1cd6a4e0c66a782fadb4299ff49672750ed80db05e53. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f357f43be18230a9c870e3ef492f058ba3b2c063b2467d6947a521a81123c29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68e6064a11dc176d7f066930bf53f880cdc73caf05631d78a75a464c48aa905. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca346133cb839c0b08b0b84d3e90a18e7a6a133288de8bda7d64ea33a9b7b56. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dfa01c587bb0a01d298964425d62b29f13d411fc8a089e289dcaff8f58300a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECE72303657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0f89d02e6884a167c89aeda8a8f6b1c34f0f9fa860c076cefab33015c5e05. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42218968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54802ba3e571baa91f72bc78ede37221d1cc622fd215b33c2921f9184bbdbb22. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62101472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa00cd0c50d8f942000510da18dfc42b98392cdb19602ea6b9225ba0728c0c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62118958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07cf8c9c3d63c53b797b16999942dd59ee104cda82622cbd93078eb770ce695. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECE72103251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410446893469aaefba668c6fb53769d92722163fac85b569033ed06c4a5322dc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812073400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d5b4ff4e8fbbf879c00052a221ae6b3c2a65d9f3705f5b88203ea41e917ce5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812064918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34aa45a8c54e8e2e35080a000a783abb32d267d2e741f6d8d6eb8e6563cedc3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812058533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddda2082693af044a995e98d17ae545170f1b369951dd7f64f3622a22b23820. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10469330bf06a4ae093446968bc7d0c98e06a210c91021b5dafe8da24b25266c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a798ddb11d204b85785f45220e924da7087e11c304cbaf52f7eb3fddd95c0e3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb485c61525efe274d79e5ab4bc985f8f808fd48c9cefe35594b13cebcae09aa8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaab36c047e65ff4bbffda41447dea188c06206218927c02b67e7140d658d322. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECE72103107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d7d7f9b559e86a0ac2b46864b36a2d65c69cd1725d5a1abb88802f7b213e98. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa984cd2c11e535cc3fddb10568a7d6475848e570fbb4d8bfbd91d5c41009321. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b7fce13fc895d3512ea26a2e4e55e558487193b2aa63e8d9421f0e67ec17a2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG2317643.